Mesa Arch spans 90 feet and stands at the edge of a mesa precipice thousands of feet above the Colorado River gorge. For a few moments at sunrise the underside of the arch glows dramatically red and orange. Arches Photo.
Image ID: 18040
Location: Island in the Sky, Canyonlands National Park, Utah, USA

Mobius Arch in the Alabama Hills, seen here at night with swirling star trails formed in the sky above due to a long time exposure. Arches Photo.
Image ID: 27681
Location: Alabama Hills Recreational Area, California, USA